Body mass index (BMI) = weight (kg) ÷ height 2 (m)

For example: 70kg (1.75x1.75) = 22.86.

For example, a person's height is 1.75m and his weight is 68kg, and his body mass index = 68/( 1.75 2) = 22.2 (kg/m 2). When the body mass index is 18.5 ~ 23.9, it is normal.

Body mass index (BMI) is an index closely related to body fat, which takes into account two factors: weight and height. Body mass index is simple and practical, which can reflect the overweight and obesity of the whole body. It is more accurate to measure the risk of heart disease, hypertension and other diseases due to overweight than to identify them simply by weight.

Extended data

Body mass index (BMI) is a number obtained by dividing the kilograms of weight by the square of the meters of height. It is a widely used international standard to measure the degree of obesity and health.

Mainly used for statistical purposes, when we need to compare and analyze the impact of a person's weight on the health of people of different heights, the body mass index value is a neutral and reliable indicator.

Uncomfortable person:

1.1under 8 years old;

2. As an athlete;

3. I am doing weight training;

4. Pregnancy or breastfeeding;

5. frail or sedentary elderly people.

References:

Baidu Encyclopedia Body Mass Index Entry